Patents by Inventor Hanns Egger

Hanns Egger has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for storing waste materials and their combustion residues in a manner harmless to underground water
    Patent number: 4194855
    Abstract: An earth pit is prepared for the storage of waste materials by lining the bottom of the pit with a layer of finely-ground loose material followed by a synthetic plastic sheet resistant to humus, roots and tearing followed by a second layer of finely-ground loose material. The layers of loose material equal the pressure on the opposite sides of the synthetic plastic sheet. A number of sheets may be solution-welded together for a large pit.
    Type: Grant
    Filed: March 27, 1978
    Date of Patent: March 25, 1980
    Inventor: Hanns Egger